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Finding the Fourth Proportional to 626,485.29, 864,549.35 and 354,548.24

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Solution

The fourth proportional to 626,485.29, 864,549.35 and 354,548.24 is: 489,276.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,485.29 : 864,549.35 = 354,548.24 : x
  2. Step 2: Convert to fraction form
    626,485.29/864,549.35 = 354,548.24/x
  3. Step 3: Cross multiply
    626,485.29x = 864,549.35 × 354,548.24
  4. Step 4: Simplify right side
    626,485.29x = 306,524,448,911.77
  5. Step 5: Solve for x
    x = 306,524,448,911.77/626,485.29
  6. Step 6: Final answer
    x = 489,276.37

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.